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dan2097 / opsin

Open Parser for Systematic IUPAC Nomenclature. Chemical name to structure conversion
https://opsin.ch.cam.ac.uk
MIT License
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double bond is not shown for bicyclo[3.2.1]oct-6-ene-3-carbonitrile #232

Closed vthimmakondu closed 1 year ago

vthimmakondu commented 1 year ago

Hi,

I was trying to get the structure of "bicyclo[3.2.1]oct-6-ene-3-carbonitrile". However, OPSIN doesn't seem to show the double bond that is there between the 6-7 position. I don't understand why? Here is the snap shot generated.

bicyclo321oct-6-ene-3-carbonitrile

dan2097 commented 1 year ago

This appears to be a bug in how Indigo is depicting this molecule. The double bond line is so small that it's barely visible, I've circled it here image I've raised a bug report (https://github.com/epam/Indigo/issues/1400)

The SMILES is correct, e.g. https://www.simolecule.com/cdkdepict/depict.html will depict this as png

vthimmakondu commented 1 year ago

Thank you.